Motorcycle oil tank



FIG. 1 is a front perspective view showing my new design for a motorcycle oil tank, the portions shown in broken lines being for illustrative purposes only and forming no part of the design,

FIG. 2 is a top view thereof, the portions shown in broken lines being for illustrative purposes only and forming no part of the design,

FIG. 3 is a bottom view thereof, the portions shown in broken lines being for illustrative purposes only and forming no part of the design,

FIG. 4 is a front view thereof, the portions shown in broken lines being for illustrative purposes only and forming no part of the design,

FIG. 5 is a rear view thereof, the portions shown in broken lines being for illustrative purposes only and forming no part of the design,

FIG. 6 is a left side view thereof, a the portions shown in broken lines being for illustrative purposes only and forming no part of the design; and,

FIG. 7 is a right side view thereof, the portions shown in broken lines being for illustrative purposes only and forming no part of the design. 

The ornamental design for a motorcycle oil tank, as shown and described. 